Sierra 18-7106-9 High and Low Speed Needle Packing, Replaces 307583, Pack of 10

The Sierra 18-7106-9 is a high and low speed needle packing for outboard carburetors, sold in a package of 10. Needle packing seals the adjusting needle where it passes through the carburetor body, preventing air and fuel leaks around the high and low speed mixture screws so the engine can hold a proper idle and mid-range fuel mixture. Over time this packing hardens or wears, causing an inconsistent idle, a rough-running engine, or a fuel smell around the carburetor; replacing it restores a proper seal at the needle bore.

Each Sierra 18-7106-9 package contains 10 pieces, giving a technician or DIY owner enough packing on hand for multiple carburetor rebuilds or a full engine's worth of high and low speed needles in one purchase. Sierra parts are built to meet or exceed the specification of the original equipment part they replace, and this needle packing directly replaces the OEM number listed below.

Specifications

• Brand: Sierra
• Manufacturer Part Number: 18-7106-9
• Item Type: High and Low Speed Needle Packing
• Pack Quantity: 10
• Weight: 0.01 pounds
• Warranty: 90 days

Fitment

Universal carburetor needle packing; confirm your carburetor uses OEM number 307583 for the high and low speed adjusting needle before ordering.

Replaces (OEM)

• 307583

Frequently Asked Questions

What does the Sierra 18-7106-9 needle packing do? It seals the high and low speed adjusting needle where it enters the carburetor body, stopping air and fuel leaks around the mixture screw so the carburetor holds a consistent idle and fuel mixture.

How many pieces come in a package of the 18-7106-9? Sierra part number 18-7106-9 is sold in a package of 10 needle packings, enough for several carburetor rebuilds.

What OEM part number does the Sierra 18-7106-9 replace? It replaces OEM number 307583.

Is the Sierra 18-7106-9 a genuine OEM part or an aftermarket replacement? It is a Sierra aftermarket replacement part, manufactured to meet or exceed the specification of the original OEM 307583 needle packing it replaces.

How much does the 18-7106-9 needle packing weigh? The Sierra 18-7106-9 package weighs 0.01 pounds.

When should I replace the needle packing on my carburetor's mixture needle? Replace it if you notice a rough or hunting idle, a fuel smell around the carburetor, or visible fuel weeping around the high or low speed adjusting screw, as these indicate the packing has hardened or worn and is no longer sealing the needle bore.

Does the Sierra 18-7106-9 come with installation instructions? The package contains 10 needle packings only; no separate instructions are included, so installation should follow standard carburetor rebuild procedure for the adjusting needle bore.

What warranty applies to the Sierra 18-7106-9? It carries a 90 day warranty.

Can I use the 18-7106-9 packing on both the high speed and low speed adjusting needles? Yes, the Sierra 18-7106-9 is designated for both high and low speed needle positions on the carburetor.

Is the Sierra 18-7106-9 packaging compatible with my carburetor if it doesn't list 307583 as a replacement? Confirm your carburetor's adjusting needle uses OEM number 307583 before ordering the 18-7106-9, since needle packing sizes vary by carburetor design.